District



PATENTED JAN. 12, 1904.

R. SIMMS. SMOKE GONSUMING MEANS.

APPLICATION FILED MAY 2a, 190s.

N0 MODEL.

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Patented .Tanuary 12, 1904.

UNITED STATES PATENT OFFICE.

RUDOLPH SIMMS, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR OF ONE-HALF TO BERNHARD F. SCHUBERT, OF WASHINGTON, DISTRICT OF COLUMBIA.

SMOKE-CONSUIVIING MEANS.

SPECIFICATION forming part of Letters Patent No. 749,586, dated January 12, 1904. Application filed May 23, 1903. Serial No. 15 8,518. (No model.)

To all w/wm it may concern: A

Be it known that I, RUDOLPH SIMMs, a citizen of the United States, residing at Washington, District of Columbia, have invented new and useful Improvements in Smoke-Consuming Means, of which the following is a specification.

This invention relates to a smoke-consuming means for use in connection with furnaces employed in operative relation to steamboilers cooperating in conjunction with engines of locomotive, stationary, or marine types. The improved smoke consuming means is located in such position in the furnace that the unconsumed gas escaping from the fuel of the main furnace will be completely consumed and economize in the use of fuel, as well as prevent the formation of smoke, and create a more perfect rate of combustion to increase the heating efliciency of the furnace.

The improved smoke-consuming means is comparatively inexpensive in its structure and application and can be readily applied to furnaces now in use with comparatively little reorganization of the parts of the same and operates to perform its intended function in connection with soft coal, tar, pitch, resin or any other kind of fuel.

The invention, broadly stated, consists ofV an auxiliary combustion-chamber located adjacent one set of terminals of the iiues, but at a distance therefrom, and a crude-oil or other burner projected in a plane at an angle into said chamber in relation to a vertically-disposed guard or baflie, with a damper movably attached to its lower extremity to controlthe course of the smoke and products of combus-` tion from the main furnace.

The invention further consists in the construction and arrangement of the several parts, which will be more fully hereinafter described and claimed.

The drawing illustrates a vertical longitudinal section of a furnace, showing smokeconsuming means disposed therein and embodying the features of the-invention.

The numeral 1 designates a furnace of any preferred type having the usual `grate 2, ashpit 3, and combustion chamber 4, which serves also as a means of conveying the smoke in the present instance to the rear of the furnace for return through flue-tubes 5 and communicating at their forward ends with a stack 6. The furnace may also be provided with such other appurtenances as are ordinarily employed in furnace construction, and it will be understood that the form of furnace shown is not at all essential to the practical operation of the smoke-consuming means, which will be more fully described hereinafter. It is proposed to apply the smoke-consuming means forming the gist of this invention to any furnace to which they may be applicable, and for the purpose of practical demonstration a furnace is illustrated having the smokestack located at the front end thereof, directly over the grate.

In the rear part of the furnace, as shown, an auxiliary combustion-chamber 7 is constructed and extends vertically, the lower end of said chamber being adapted to communicate with the chamber 4. Centrally disposed within the chamber 7 is a guard or baflie plate 8, which is located at a distance from the rear ends of the flues 5, and to the lower end thereof 'a damper 9 is pivotally attached and is of such length as to contact with thelower wall of the `chamber 7 and Vthe chamber 4 communicating therewith or the rear flue-tube sheet, to thereby permit the smoke or products of combustion and draft to be established between the guard or bafHe plate 8 and the rear end of the flue-tubes or cause said products 0f combustion to pass between the guardor baffle plate and the rear wallof thev chamber 7. In the rear wall 9a of the chamber 7 an' opening' 10 of inwardly-contracting contour is formed, and therein a conical thimble or shield l1 is mounted and has its reduced extremity projected into said chamber 7. Centrally located in the reduced extremity of this thimble or shield 11 is a crude-oil burner l2 of any preferred form, to which a feed-pipe 13 is secured and runs to any suitable source of supply, and to regulate the ow of oil therethrough a valve14 is interposed in the said pipe. The reduced end of the burner 12 projects inwardly beyond the inner terminal of the tliimble oi shield 11, and the latter is large enough to permit the insertion of an igniting device, or in some instances the oil will be ignited by the flame that may pass rearwardly into the chamber 7 from the main furnace or bed of burning fuel on the grate 2.

In the operation of the smoke-consuming means the oil is permitted to pass through the pipe 13 to the burner, the damper 9 having first been turned into horizontal position, as shown in dotted lines. The oil iiowing from the burner 12 becomes ignited or is manually ignited from the rear of the furnace, and the flame shoots over against the guard or baffle 8. The products of combustion and unconsumed gases entering the chamber 7 behind the guard or bafiie 8 come into contact with the flame and are consumed, and what residuum may escape over the upper edge of the guard orbafie 8 and pass through the Hue-tubes 5 into the stack 6 will be colorless. Practical use of the smoke consuming means has demonstrated that the consumption of the gases in rear of the guard or baffle 8 is absolute and that only heat currents pass out through the flue-tubes 5 into the smoke-stack 6, thereby materially increasing the heating capacity of the furnace and economizing in the use of fuel. The draft of the furnace is not in the least impaired by the application of the smoke-consuming means set forth, and at times when it may be undesirable under certain conditions to use the smoke-consuming means the damper 9 will be disposed in vertical position, so that the products of combustion of the main furnace will pass directly through the fine-tubes into the stack.

It is proposed to form the guard or baflie 8 of some suitable refractory or hard material, and in connection with the burner 12 any of the well-known forms of blast means or injectors may be used. It is also proposed to vary the proportions, dimensions, and minor details of the several parts to accommodate different applications of the smoke-consuming means without departing from the spirit of the invention.

Having thus fully described the invention, what is claimed as new is- 1. A furnace having a grate, combustionchamber, flue-tubes, and a stack, combined with an auxiliary combustion chamber arranged adjacent one set of terminals of the fine-tubes, a bafie vertically disposed in the said auxiliary combustion chamber, and a burner arranged to direct its iiame against the baffle to consume the gases passing into the auxiliary combustion-chamber.

2. The combination with a furnace having fine-tubes and escape-stack, of an auxiliary combustion-chamber communicating with the main combustion-chamber, a baffle disposed in said auxiliary combustion-chamber adjacent to one set of terminals of the iiue-tube and at a distance from the latter, and a iiame, means cooperating with the said baffle in the auxiliary chamber to consume the gases passing into the latter.

3. The combination with a furnace having flue-tubes and an escape-passage, of an auxiliary chamber communicating with the main combustion-chamber, a baiile disposed in said auxiliary chamber and having a damper movably attached to one end thereof to create two passages in relation to the flue-tubes, and a name-producing means projecting into the auxiliary chamber and cooperating with the baffle.

4. The combination with a furnace, of an auxiliary combustion-chamber having a baiiie extending lengthwise thereof and forming two passages therein, a damper hinged to one end of the baiiie to control the open or closed condition of either of said passages, and a flameproducing means'projecting in a plane at an angle in relation to and cooperating with the.

said baflie.

5. The combination with a furnace having flue-tubes and an escape, of an auxiliary combustion-chamber with which one set of terminals of the flue-tubes communicates, a bafiie extending partially through the said auxiliary chamber at a distance from the terminals of the flue-tubes and forming two passages, and a iiame-producing means projecting into one of the passages and cooperating with the baflie.

6. The combination with a furnace having flue-tubes and an escape, of an auxiliary combustion-chamber with which one set of the terminals of the flue-tubes communicates, a baffle extending partially through the auxiliary chamber and forming two passages in the latter, means at one end of the baffle for controlling communication of either of the passages with the main combustion-chamber of the furnace, a conical shield extending through the wall of the furnace into one of the passages and having its reduced extremity projected toward the baffle, and a burner located in said shield and provided with fuel-supply means.

In testimony whereof I aiiix my signature in presence of two witnesses.

RUDOLPH snviMs.

IIO 

